Core/Misc: Fix static analysis issues

src/server/game/Handlers/CharacterHandler.cpp

@@ -2243,7 +2243,7 @@ void WorldSession::HandleCharFactionOrRaceChangeCallback(std::shared_ptr<Charact
                         ss << knownTitles[index] << ' ';
 
                     stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_CHAR_TITLES_FACTION_CHANGE);
-                    stmt->setString(0, ss.str().c_str());
+                    stmt->setString(0, ss.str());
                     stmt->setUInt32(1, lowGuid);
                     trans->Append(stmt);